Coarse-Grained Deltas


Book Description

This Special Publication contains most of the contributions presented at the 1st International Workshop on Fan Deltas (1988) but also contains additional papers which make this particular volume a very well-rounded reference source for the advanced undergraduate/graduate student and the professional earth scientist concerned with sedimentology and petroleum geology. The papers describe the sedimentology and tectonic setting of this important depositional environment. Course-grained deltas, ranging from sand to gravelly, are fully covered and the main focus is on steep-face systems whose steep subaqueous slopes are dominated by high-energy processes. The volume includes case histories from around the world and throughout the book there is emphasis on the subaqueous realm of the delta face, its sedimentary processes and facies associations










Coastal Sedimentary Environments


Book Description

The zone where land and sea meet is composed of a variety of complex environments. The coastal areas of the world contain a large percentage of its population and are therefore of extreme economic importance. Industrial, residential, and recreational developments, as well as large urban complexes, occupy much of the coastal margin of most highly developed countries. Undoubtedly future expansion in many undeveloped maritime countries will also be concentrated on coastal areas. Accompanying our occupation of coasts in this age of technology is a dependence on coastal environments for transportation, food, water, defense, and recreation. In order to utilize the coastal zone to its capacity, and yet not plunder its resources, we must have extensive knowledge of the complex environments contained along the coasts. The many environments within the coastal zone include bays, estuaries, deltas, marshes, dunes, and beaches. A tremendously broad range of conditions is represented by these environments. Salinity may range from essentially fresh water in estuaries, such as along the east coast of the United States, to extreme hypersaline lagoons, such as Laguna Madre in Texas. Coastal environments may be in excess of a hundred meters deep (fjords) or may extend several meters above sea level in the form of dunes. Some coastal environments are well protected and are not subjected to high physical energy except for occasional storms, whereas beaches and tidal inlets are continuously modified by waves and currents.




Delta Empire


Book Description

In Delta Empire: Lee Wilson and the Transformation of Agriculture in the New South Jeannie Whayne employs the fascinating history of a powerful plantation owner in the Arkansas delta to recount the evolution of southern agriculture from the late nineteenth century through World War II. After his father’s death in 1870, Robert E. “Lee” Wilson inherited 400 acres of land in Mississippi County, Arkansas. Over his lifetime, he transformed that inheritance into a 50,000-acre lumber operation and cotton plantation. Early on, Wilson saw an opportunity in the swampy local terrain, which sold for as little as fifty cents an acre, to satisfy an expanding national market for Arkansas forest reserves. He also led the fundamental transformation of the landscape, involving the drainage of tens of thousands of acres of land, in order to create the vast agricultural empire he envisioned. A consummate manager, Wilson employed the tenancy and sharecropping system to his advantage while earning a reputation for fair treatment of laborers, a reputation—Whayne suggests—not entirely deserved. He cultivated a cadre of relatives and employees from whom he expected absolute devotion. Leveraging every asset during his life and often deeply in debt, Wilson saved his company from bankruptcy several times, leaving it to the next generation to successfully steer the business through the challenges of the 1930s and World War II. Delta Empire traces the transition from the labor-intensive sharecropping and tenancy system to the capital-intensive neo-plantations of the post–World War II era to the portfolio plantation model. Through Wilson’s story Whayne provides a compelling case study of strategic innovation and the changing economy of the South in the late nineteenth century.




Deltas and Humans


Book Description

Humans have had a long relationship with the ebb and flow of tides on river deltas around the world. The fertile soils of river deltas provided early human civilizations with a means of farming crops and obtaining seafood from the highly productive marshes and shallow coastal waters associated with deltas. However, this relationship has at times been both nurturing and tumultuous for the development of early civilizations. The vicissitudes of seasonal changes in river flooding events as well as frequently shifting deltaic soils made life for these early human settlements challenging. These natural transient processes that affect the supply of sediments to deltas today are in many ways very similar to what they have been over the millennia of human settlements. But something else has been altered in the natural rhythm of these cycles. The massive expansion of human populations around the world in both the lower and upper drainage basins of these large rivers have changed the manner in which sediments and water are delivered to deltas. Because of the high density of human populations found in these regions, humans have developed elaborate hydrological engineering schemes in an attempt to "tame" these deltas. The goal of this book is to provide information on the historical relationship between humans and deltas that will hopefully encourage immediate preparation for coastal management plans in response to the impending inundation of major cities, as a result of global change around the world.




Perspectives on the Restoration of the Mississippi Delta


Book Description

Human impacts and emerging mega-trends such as climate change and energy scarcity will impact natural resource management in this century. This is especially true for deltas because of their ecological and economic importance and their sensitivity to climate change. The Mississippi delta is one of the largest in the world and has been strongly impacted by human activities. Currently there is an ambitious plan for restoration of the delta. This book, by a renown group of delta experts, provides an overview of the challenges facing the delta and charts - a way forward to sustainable management.




Encyclopedia of Coastal Science


Book Description

This new Encyclopedia of Coastal Science stands as the latest authoritative source in the field of coastal studies, making it the standard reference work for specialists and the interested lay person. Unique in its interdisciplinary approach. This Encyclopedia features contributions by 245 well-known international specialists in their respective fields and is abundantly illustrated with line-drawings and photographs. Not only does this volume offer an extensive number of entries, it also includes various appendices, an illustrated glossary of coastal morphology and extensive bibliographic listings.




Delta Life


Book Description

Proposing a series of innovative steps towards better understanding human lives at the interstices of water and land, this volume includes eight ethnographies from deltas around the world. The book presents 'delta life' with intimate descriptions of the predicaments, imaginations and activities of delta inhabitants. Conceptually, the collection develops 'delta life' as a metaphor for approaching continual and intersecting sociocultural, economic and material transformations more widely. The book revolves around questions of hydrosociality, volatility, rhythms and scale. It thereby yields insights into people's lives that conventional, hydrological approaches to deltas cannot provide.




Regional Geology and Tectonics: Principles of Geologic Analysis


Book Description

Regional Geology and Tectonics: Principles of Geologic Analysis, 2nd edition is the first in a three-volume series covering Phanerozoic regional geology and tectonics. The new edition provides updates to the first edition's detailed overview of geologic processes, and includes new sections on plate tectonics, petroleum systems, and new methods of geological analysis. This book provides both professionals and students with the basic principles necessary to grasp the conceptual approaches to hydrocarbon exploration in a wide variety of geological settings globally. - Discusses in detail the principles of regional geological analysis and the main geological and geophysical tools - Captures and identifies the tectonics of the world in detail, through a series of unique geographic maps, allowing quick access to exact tectonic locations - Serves as the ideal introductory overview and complementary reference to the core concepts of regional geology and tectonics offered in volumes 2 and 3 in the series